STX10A 10 kVA / 8 kW Three-Phase Online UPS System

Overview

The STX10A is a true online double-conversion uninterruptible power supply engineered for mission-critical infrastructure in industrial control rooms, laboratory instrumentation racks, data acquisition systems, and analytical instrument suites requiring zero-transfer-time power continuity. Operating on the principle of continuous rectification–inversion, it isolates connected loads from all mains-borne disturbances—including sags, surges, harmonics, frequency drift, and complete outages—by maintaining uninterrupted AC output via regulated inverter operation. Its three-phase four-wire + ground input architecture ensures compatibility with standard industrial power distribution panels, while the pure sine wave output meets stringent requirements for sensitive electronic loads such as chromatography data systems, mass spectrometer controllers, and real-time embedded measurement hardware. Designed to ANSI/IEEE 519 and IEC 62040-3 compliance frameworks, the STX10A delivers stable voltage regulation (<±1%), tight frequency control (±0.5%), and sub-millisecond dynamic response to load transients—critical for preserving calibration integrity and preventing thermal shutdown in high-precision equipment.

Key Features

• Zero-interruption transfer during mains failure or restoration—no break in power delivery to downstream instrumentation
• Seamless, load-synchronized inverter-to-bypass and bypass-to-inverter transition under full-rated load
• Dual-display interface: Comprehensive LED status bank plus 40-character backlit LCD supporting real-time monitoring of input/output parameters, battery health, thermal conditions, and interactive diagnostics
• Integrated surge suppression compliant with IEEE C62.41 (Category III) and FCC Part 15 Class A emission limits
• High-efficiency 84% AC-to-AC conversion minimizes heat generation and operational energy cost over extended runtime cycles
• Robust mechanical design: Steel chassis with front-accessible battery compartment; IP20-rated enclosure suitable for controlled indoor environments
• Intelligent alarm hierarchy with differentiated audible signals for mains loss, low battery, and system fault conditions

Sample Compatibility & Compliance

The STX10A supports stable operation across a broad spectrum of scientific and industrial equipment, including but not limited to: gas chromatographs (GC), liquid chromatography systems (HPLC/UHPLC), electrophoresis power supplies, laser-based particle analyzers, and programmable logic controllers (PLCs) used in automated test benches. It satisfies essential electromagnetic compatibility (EMC) and safety criteria per IEC 62040-2 (safety) and IEC 62040-3 (performance), and its surge immunity aligns with IEEE C62.41 Level III (distribution-level transient protection). While not certified to UL 1778 or EN 62040-1 for medical applications, it is routinely deployed in GLP-compliant laboratories where power continuity directly impacts data validity and audit trail integrity. The unit operates within ambient conditions defined by ISO 14644-1 Class 8 cleanroom specifications (0–40 °C, 10–90% RH non-condensing), making it suitable for integration into HVAC-controlled analytical labs.

Software & Data Management

The STX10A includes an RS232 serial port and optional SNMP-enabled network card (sold separately) for integration into centralized facility monitoring platforms. Standard communication protocol support enables logging of event timestamps (e.g., mains failure onset, battery discharge initiation, bypass activation), load percentage trends, and battery cycle history—data essential for predictive maintenance planning and FDA 21 CFR Part 11–aligned electronic record retention when paired with validated SCADA or LIMS middleware. All configuration changes, firmware updates, and self-test results are timestamped and stored locally in non-volatile memory. Audit trails can be exported in CSV format for inclusion in lab quality documentation packages without reliance on proprietary cloud services.

Applications

• Continuous power conditioning for HPLC pump controllers and detector electronics during grid instability events
• Backup support for multi-channel data acquisition systems capturing time-sensitive physical measurements (e.g., thermal expansion, tensile testing)
• Stabilized input for laser interferometers and atomic force microscopes requiring sub-cycle voltage fidelity
• Bridge power for PLC-driven environmental chambers during utility switchover in validation protocols
• Protection layer for Ethernet-connected IoT sensors in distributed lab networks subject to harmonic distortion from variable-frequency drives

FAQ

What is the maximum allowable ambient temperature for continuous operation?

The STX10A is rated for continuous duty at ambient temperatures up to 40 °C, provided relative humidity remains below 90% non-condensing and airflow around the rear ventilation grilles is unobstructed.

Can the battery configuration be expanded for longer runtime?

Yes—the unit supports external battery cabinets compatible with 192 V DC nominal architecture; extension requires matching voltage tolerance, charge current coordination, and thermal management per IEC 62485-2.

Is the STX10A suitable for use with medical diagnostic equipment?

It is not certified to IEC 60601-1 or UL 60601-1; deployment in clinical diagnostic settings requires formal risk assessment and supplemental isolation per local regulatory authority guidance.

Does the unit provide waveform distortion metrics in real time?

No—THD is specified as <3% at full linear load under steady-state conditions; real-time harmonic analysis requires external power quality analyzers compliant with IEC 61000-4-30 Class A.

How is firmware updated, and is version history traceable?

Firmware updates are performed via RS232 using vendor-supplied utilities; each update logs date, version number, and operator ID in internal event memory, supporting ISO/IEC 17025 traceability requirements.